
#include <machine/asm.h>

/*
 * Byte-swap a 2-byte quantity.  (Convert 0x0123 to 0x2301.)
 *
 * Argument is an unsigned 2-byte integer (uint16_t).
 */
#if defined(_KERNEL) || defined(_STANDALONE)
#define	BSWAP16	bswap16
#else /* defined(_KERNEL) || defined(_STANDALONE) */
#define	BSWAP16	__bswap16
#endif /* defined(_KERNEL) || defined(_STANDALONE) */
LEAF(BSWAP16, 1)		/* a0 contains 0x0123 */
XLEAF(htons, 1)
XLEAF(ntohs, 1)
	insbl	a0, 1, t0	/* t0 = 0x23   */
	extbl	a0, 1, t1	/* t1 = 0x  01 */
	or	t0, t1, v0	/* v0 = 0x2301 */
	RET
END(BSWAP16)
